Hello Everyone! Today in this video I am going to step by step guide you How To connect to Oracle database with NetBeans 19 using Database Services tool , so you can work with and manage Oracle databases right inside NetBeans without having to use an external program like SQL Developer or SQLPlus Command Line Client .
What is database connectivity?
Database connectivity allows the client software to communicate with the database server software. It is an interface that allows communication between the database and the software application. Elements of frontend applications/websites like buttons, fonts, or menus need to be connected to the database (back-end) to deliver relevant information to the end-user. Database connectivity allows this type of communication/data transfer between the frontend and backend applications.
Steps to Connect Java Application with Database
Below are the steps that explains how to connect to Database in Java:
Step 1 - Import the Packages
Step 2 - Load the drivers using the forName() method
Ex:-Class.forName(“oracle.jdbc.driver.OracleDriver")
Step 3 - Register the drivers using DriverManager
Step 4 - Establish a connection using the Connection class object
Ex:-
Connection con = DriverManager.getConnection(url,user,password)
user: Username from which your SQL command prompt can be accessed.
password: password from which the SQL command prompt can be accessed.
con: It is a reference to the Connection interface.
Url: Uniform Resource Locator which is created as shown below:
String url = “ jdbc:oracle:thin:@localhost:1521:xe”
Step 5 - Create a statement
Step 6 - Execute the query
Step 7 - Close the connections
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7 дек 2023
